Adds a step_youtube wizard prompt (enable + cookies host folder), the @YOUTUBE_VOLUME@ token in templates/compose/backend.yml substituted in compose_gen, a YOUTUBE_ENABLED/cookies env block, ensure_youtube_dir in lifecycle, en/ru strings, and a README step.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Replace the hardcoded MUSICBRAINZ_USER_AGENT placeholder in env.template
with an optional MUSICBRAINZ_OWNER_EMAIL prompt in step_enrichment.
The backend now composes a valid User-Agent from app name + version +
this email (falling back to the project URL if left blank).
Adds a wizard step (after the ML step) that prompts for an AcoustID API
key. Left blank, enrichment runs on embedded tags only; with a key the
backend also identifies untagged files by audio fingerprint (§1D). The
key is appended to .env.deploy and reaches both api and worker via
env_file. en/ru strings included.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Senko-san